Tax Planning for Law Firms: How Much Are You Losing Every Year?

Executive Summary

The Big Picture

A profitable law firm can still pay more in taxes than necessary. The problem is often not a lack of deductions. It is a lack of planning.

Tax preparation looks backward. Tax planning looks forward. When you wait until tax season to think about taxes, many of the decisions that could have reduced your tax bill have already been made. A year-round tax strategy gives you time to review your income, business structure, retirement options, deductions, and estimated payments before deadlines limit your choices.

For law firm owners, the difference can affect more than the tax return. A better strategy can protect cash flow, make tax payments more predictable, and leave more money available to reinvest in the firm.

The Cheat Sheet

• Tax preparation and tax planning are not the same thing. Filing an accurate return does not mean you used every appropriate planning opportunity.
• Entity structure matters. How your firm is structured can affect how income is taxed and how the owner is paid.
• Timing matters. Some tax strategies must be put in place before year-end or before a transaction happens.
• Accurate books make better planning possible. You cannot build a reliable tax projection from incomplete or outdated numbers.
• Tax planning should happen throughout the year. Your strategy should change as revenue, profit, payroll, and business plans change.

The Business of Law: A Tax Return Is Not a Tax Strategy

Law firm owners often think about taxes in the spring. They send their records to their tax professional, answer a few questions, sign the return, and pay what they owe.

That process may produce an accurate tax return. But it does not necessarily produce the lowest appropriate tax liability.

By the time a tax return is prepared, the year is over. Revenue has already been earned. Expenses have already been paid. Payroll has already been processed. Retirement contributions may face deadlines. Major purchases have already happened. The opportunity to change some of those decisions may be gone.

That is why tax planning for law firms should be an ongoing process.

The IRS itself recognizes that business owners often need to estimate their income, deductions, credits, and taxes during the year. Estimated taxes are part of the federal pay-as-you-go system, and projections may need to be updated when income changes.

This is especially important for law firms because revenue is not always predictable. A contingency fee can create a large jump in income. A strong quarter can push annual profit higher than expected. A new associate or major investment can change expenses just as quickly.

Without current financial information and a tax strategy, you are reacting to those changes instead of planning for them.

So, how much are you losing without a tax strategy?

There is no universal number. It depends on your income, entity structure, expenses, retirement goals, state, and personal tax situation. But the potential cost is not limited to missed deductions. It can also include inefficient owner compensation, missed retirement planning opportunities, penalties, poor timing, and cash sitting in the wrong place at the wrong time.

Your Business Structure May Be Costing You Money

Why It Matters

The entity you chose when you started your law firm may not be the structure that makes sense today.

A solo attorney earning modest profit has different needs than a firm producing significant profit with several employees. As the firm grows, the tax impact of its structure deserves another look.

How It Works

Depending on your circumstances, your law firm may operate as a:

• Sole proprietorship
• Single-member LLC
• Partnership or multi-member LLC
• S corporation
• C corporation

The legal entity and federal tax classification are not always the same thing. An LLC, for example, may elect to be taxed differently for federal purposes.

An S corporation election is one strategy that sometimes receives attention because an owner who works for the corporation generally receives wages, while additional earnings may pass through to the owner. However, S corporations come with payroll, compliance, reasonable compensation, and administrative requirements. It is not automatically the right choice just because the firm is profitable.

The real question is whether your current structure still supports your firm’s financial position.

A tax projection can help compare the impact of different structures while considering:

• Current and projected profit
• Owner compensation
• Payroll taxes
• Retirement plan goals
• Administrative costs
• State taxes
• Future hiring
• Other household income

CPA Pro Tip

Do not change entities because another attorney told you how much they saved. Two law firms with similar revenue can have very different tax situations. Run the numbers using your actual financial data before making a change.

You May Be Missing Deductions You Already Earned

Why It Matters

Tax planning is not about creating questionable write-offs. It is about identifying legitimate business expenses, documenting them correctly, and understanding how they affect your overall tax picture.

Small missed expenses can add up over an entire year.

How It Works

Depending on the facts, a law firm may have deductible expenses related to areas such as:

• Legal software and technology
• Professional subscriptions
• Bar dues and professional memberships
• Continuing education
• Business insurance
• Marketing and advertising
• Payroll and employee benefits
• Accounting and professional services
• Office supplies and equipment
• Business travel
• Business use of a vehicle
• Qualified retirement plan contributions

Vehicle expenses are a good example of why recordkeeping matters. For 2026, the IRS business standard mileage rate was 72.5 cents per mile for January through June and increased to 76 cents per mile beginning July 1, 2026.

If business mileage is not tracked, potentially deductible expenses can be much harder to substantiate later.

The same principle applies throughout the firm. Expenses should be recorded in the correct accounts and supported with appropriate documentation.

CPA Pro Tip

Do not wait until March to reconstruct a year of business expenses. Your bookkeeping system should capture them as they happen. Monthly bookkeeping gives you cleaner records and makes proactive tax planning much easier.

Your Compensation Strategy Could Be Inefficient

Why It Matters

Many law firm owners focus on how much money they take out of the business without considering how that money is being paid.

Those are two different questions.

Your entity type, payroll, owner compensation, distributions, and overall profit all interact. If those pieces are not reviewed together, you may end up with an inefficient strategy or an unexpected tax problem.

How It Works

Your compensation strategy may need to consider:

• Your firm’s entity and tax classification
• W-2 wages
• Owner draws or distributions
• Firm profitability
• Payroll taxes
• Retirement contributions
• Estimated income taxes
• Cash needed inside the business

This becomes especially important for S corporation owners. Compensation should not simply be set at an arbitrary low number to reduce payroll taxes. The facts of the business and the owner’s role need to support the approach.

The goal is not to minimize one tax in isolation. It is to build a compensation strategy that makes sense across the owner’s complete financial picture.

CPA Pro Tip

Review owner compensation at least annually and whenever profitability changes significantly. The salary that made sense two years ago may no longer fit a growing law firm.

You Could Be Missing Retirement Planning Opportunities

Why It Matters

A retirement plan can do more than prepare you for the future. Depending on the plan and your circumstances, contributions may also play an important role in current tax planning.

But choosing a retirement plan should not happen in isolation.

How It Works

Depending on the size and structure of your law firm, options may include plans such as:

• SEP IRA
• SIMPLE IRA
• 401(k)
• Safe harbor 401(k)
• Profit-sharing arrangements
• Cash balance or defined benefit plans

Each comes with different rules, contribution limits, deadlines, costs, and employee considerations.

For example, a solo owner with no employees may have very different options from a firm with five employees. Once you have a team, eligibility and contribution requirements can affect the cost of the strategy.

Retirement planning should therefore be coordinated with:

• Expected annual profit
• Owner compensation
• Employee demographics
• Cash flow
• Long-term retirement goals
• Other tax strategies

The key is to evaluate these options early enough to make an informed decision.

CPA Pro Tip

Do not wait until you are filing your return to start asking about retirement planning. Some decisions have deadlines or require advance setup. Talk with your tax and financial professionals during the year so there is time to evaluate the options.

Poor Tax Projections Can Create Cash Flow Problems

Why It Matters

A tax strategy is not only about reducing taxes. It is also about knowing what you are likely to owe.

An unexpected $40,000 tax bill hurts much more when the cash has already been spent on hiring, bonuses, equipment, or owner distributions.

How It Works

A good tax projection starts with current financial information and estimates your expected:

• Annual revenue
• Net business income
• Owner compensation
• Deductions
• Retirement contributions
• Tax credits
• Other household income
• Federal and state tax liability
• Estimated tax payments already made

The IRS generally requires individuals, including sole proprietors, partners, and S corporation shareholders, to make estimated payments when they expect to owe at least $1,000 after withholding and credits, subject to the applicable rules. Underpayment or late payment can result in penalties.

A projection should not be created once in January and forgotten.

Suppose your law firm expected $500,000 in revenue but has already generated $475,000 by September. Your original projection may no longer be useful.

Update it.

That gives you time to understand the tax impact and determine whether there are appropriate planning moves to make before year-end.

CPA Pro Tip

For firms with unpredictable revenue, tax projections are especially valuable. Update them when a large case settles, revenue changes sharply, you hire an employee, or another major financial event occurs.

Waiting Until Tax Season Can Be Expensive

Why It Matters

One of the biggest differences between tax preparation and tax planning is timing.

A tax preparer can accurately report what happened last year. A tax advisor working proactively can help you consider decisions before you make them.

How It Works

Consider the difference:

Reactive approach: Your CPA receives your books after year-end, calculates your tax liability, prepares the return, and tells you what you owe.

Proactive approach: Your accounting team maintains current books, reviews profit during the year, projects your tax liability, identifies potential planning opportunities, and helps you prepare for upcoming payments.

The second approach gives you more information while decisions can still be made.

This can become especially important when your firm:

• Has a major increase in profit
• Receives a large contingency fee
• Hires its first associate
• Adds a partner
• Purchases equipment
• Changes owner compensation
• Opens a retirement plan
• Expands into another state
• Makes a large charitable contribution
• Plans a major investment in growth

Planning does not guarantee a specific amount of tax savings. It gives you the chance to make informed decisions before the window closes.

Tax planning works best when it happens throughout the year, not after the year is already over. For a deeper look at what proactive planning can include, read our guide to Tax Strategy Planning for Law Firm Owners: How to Reduce Taxes All Year Long 

CPA Pro Tip

A large tax bill does not automatically mean your tax strategy failed. Sometimes a growing, highly profitable firm simply owes more tax. The better question is whether the liability was projected, planned for, and appropriately managed.

The Smaller Opportunities Law Firm Owners Often Miss

Not every tax planning opportunity creates a dramatic five-figure change. Some are smaller. But when the same items are missed year after year, the cost grows.

Here are several areas worth reviewing.

Business mileage: Trips between qualifying business locations, client meetings, court appearances, conferences, and other business travel may create deductible vehicle expenses when requirements are met. Keep contemporaneous records.

Professional education: CLE programs, conferences, and other qualifying education related to your existing profession may be business expenses depending on the circumstances.

Technology: Your practice management software, accounting software, cybersecurity tools, research platforms, cloud storage, and other business technology should be properly captured in your books.

Home office considerations: Attorneys who work from home may qualify for a home office deduction when the applicable requirements are met.

Health insurance and benefits: Depending on your entity structure and circumstances, the tax treatment of health insurance and other benefits may deserve closer review.

Equipment and major purchases: The timing and tax treatment of computers, furniture, equipment, and other assets can affect your tax strategy.

Qualified business income: The QBI deduction can be relevant to some pass-through business owners. However, law is classified as a specified service trade or business, so income limitations and other rules can affect whether a law firm owner qualifies.

The important point is not to chase every possible deduction. It is to build a system that catches legitimate opportunities consistently.

When bookkeeping, payroll, tax planning, and financial reporting are disconnected, opportunities are easier to miss.

What Does a Good Tax Strategy for a Law Firm Look Like?

Good tax planning for law firms is not a December shopping spree to create deductions.

It is a year-round process connected to the firm’s financial system.

Your accounting records tell you what is happening. Your tax projections show where you may be headed. Your tax strategy helps you decide what to do next.

For many firms, that means having a regular process that includes:

1. Accurate monthly bookkeeping. Your financial statements should reflect what is actually happening in the business.
2. Regular tax projections. Estimate your liability using current results instead of relying only on last year’s numbers.
3. Quarterly financial reviews. Look at revenue, profit, cash, owner compensation, and upcoming changes.
4. Year-end planning before year-end. Review available strategies while there is still time to act.
5. Coordination between accounting and tax. Your tax strategy should use the same financial information you use to run your firm.

That turns taxes from an annual surprise into a financial planning process.

Frequently Asked Questions

The Bottom Line: Stop Guessing About Taxes

The biggest benefit of a tax strategy is not finding one secret deduction. It is building a system.

Your bookkeeping should tell you how the firm is performing. Your tax projections should show what you may owe. Your advisory process should help you decide what actions make sense before important deadlines pass.

As your law firm grows, this becomes even more important. More revenue can mean more taxes, but it can also create more planning opportunities. New employees, higher owner compensation, retirement plans, larger investments, and changing cash flow all affect the financial picture.

You cannot control every tax rule, and a good strategy does not mean eliminating taxes. It means understanding your options, planning ahead, and making informed decisions with accurate numbers.

That is how tax planning becomes part of growing a financially stronger law firm rather than something you think about once a year.

Ready to Find Out What Your Law Firm May Be Missing?

At Aligned CPA, we help solo and small law firm owners bring their bookkeeping, tax planning, financial reporting, and advisory process together.

Our goal is to give you clearer numbers, more proactive tax planning, and fewer financial surprises so you can make better decisions as your firm grows.

Schedule a discovery meeting to see whether Aligned CPA is the right fit for your law firm.